There are multiple artists with this name. 1. Sis is a project led by Berkeley, CA, United States-based multi-instrumentalist and vocalist, Jenny Gillespie Mason. 2. SiS is a B-Pop girl group. 3. SIS is Burak Sar, a techno/house artist. 4. Sis is a Bulgarian R&B/soul singer. 5. Sis is a Turkish hip-hop act. 6. Sis is a Turkish rock act. 7. Sis is a Japanese industrial/psychedelic rock act. 8. Sis is a Chinese girl group formed from the top 3 contestants in the singing show The Chosen One 3. Read more on Last.fm